Edit: On a side note, I wonder how Peter knew that Sylar was put into the cell. He ran away in Jessie's body before Noah put Sylar into the cell. I wonder why Claire said "You took everything from me," when Sylar never got her ability in that future. Maybe he stole it from her later on, but that doesn't go with future Peter saying "That wasn't supposed to happen!" when he found out Sylar got the healing ability.